[xen staging] VMX: no open-coding in vmx_get_cpl()

[patchbot@xxxxxxx]

commit 23cd1207e7f6ee3e51fb42e11dba8d7cdb28e1e5
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Thu Apr 25 16:38:01 2024 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Thu Apr 25 16:38:01 2024 +0200

    VMX: no open-coding in vmx_get_cpl()
    
    Neither X86_SEG_AR_DPL nor MASK_EXTR() should really be avoided here,
    using literal number instead.
    
    No difference in generated code (with gcc13 at least).
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
 xen/arch/x86/hvm/vmx/vmx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/arch/x86/hvm/vmx/vmx.c b/xen/arch/x86/hvm/vmx/vmx.c
index 0935762378..5f67a48592 100644
--- a/xen/arch/x86/hvm/vmx/vmx.c
+++ b/xen/arch/x86/hvm/vmx/vmx.c
@@ -1192,7 +1192,7 @@ unsigned int vmx_get_cpl(void)
 
     __vmread(GUEST_SS_AR_BYTES, &attr);
 
-    return (attr >> 5) & 3;
+    return MASK_EXTR(attr, X86_SEG_AR_DPL);
 }
 
 static unsigned int cf_check _vmx_get_cpl(struct vcpu *v)
--
generated by git-patchbot for /home/xen/git/xen.git#staging